From f0907415295066fb8963af98f1000b18c03af81b Mon Sep 17 00:00:00 2001
From: Oliver Stolle 3024383 <3024383@stud.hs-mannheim.de>
Date: Mon, 4 May 2026 21:11:31 +0000
Subject: [PATCH] Implementet the webserver exercise

---
 web/07/eigene_loesungen/webserver.go | 93 ++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)

diff --git a/web/07/eigene_loesungen/webserver.go b/web/07/eigene_loesungen/webserver.go
index e69de29..9a62f74 100644
--- a/web/07/eigene_loesungen/webserver.go
+++ b/web/07/eigene_loesungen/webserver.go
@@ -0,0 +1,93 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+)
+
+type ServerHandler int
+
+type anmeldung struct {
+	Vorname    string   `json:"vorname"`
+	Nachname   string   `json:"nachname"`
+	Email      string   `json:"email"`
+	Telefon    string   `json:"telefon"`
+	Sessions   []string `json:"sessions"`
+	Agb        string   `json:"agb"`
+	Newsletter string   `json:"newsletter"`
+	Equipment  string   `json:"equipment"`
+	Format     []string `json:"format"`
+}
+
+func (formHandler ServerHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Access-Control-Allow-Origin", "*") //What is that for???
+	w.Header().Set("Access-Control-Allow-Methods", "POST")
+	w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
+
+	if r.Method == http.MethodOptions {
+		w.WriteHeader(http.StatusOK)
+		return
+	}
+
+	if r.Method != http.MethodPost {
+		http.Error(w, "Only POST requests are allowed", http.StatusMethodNotAllowed)
+		return
+	}
+
+	var vorname string
+	var nachname string
+	var email string
+	var telefon string
+	var sessions []string
+	var agb string
+	var newsletter string
+	var equipment string
+	var format []string
+
+	var anmeldung anmeldung
+
+	if err := json.NewDecoder(r.Body).Decode(&anmeldung); err != nil {
+		vorname = anmeldung.Vorname
+		nachname = anmeldung.Nachname
+		email = anmeldung.Email
+		telefon = anmeldung.Telefon
+		sessions = anmeldung.Sessions
+		agb = anmeldung.Agb
+		newsletter = anmeldung.Newsletter
+		equipment = anmeldung.Equipment
+		format = anmeldung.Format
+
+	} else {
+		if err := r.ParseForm(); err != nil {
+			http.Error(w, "Fehler beim Parsen des Formulars", http.StatusBadRequest)
+			return
+		}
+
+		if len(r.PostForm) == 0 {
+			http.Error(w, "Kein POST-Formular gesendet", http.StatusBadRequest)
+			return
+		}
+
+		vorname = r.PostForm.Get("vorname")
+		nachname = r.PostForm.Get("nachname")
+		email = r.PostForm.Get("email")
+		telefon = r.PostForm.Get("telefon")
+		sessions = r.PostForm["sessions"]
+
+		agb = r.PostForm.Get("agb")
+		newsletter = r.PostForm.Get("newsletter")
+		equipment = r.PostForm.Get("equipment")
+		format = r.PostForm["format"]
+	}
+
+	response := fmt.Sprintf("Anmeldung erfolgreich! Ihre Anmeldedaten lauten:<br>Vorname: %s<br>Nachname: %s<br>E-Mail: %s<br>Telefon: %s<br>Session: %v<br>Agb: %s<br>Newsletter: %s<br>Equipment: %s<br>Format: %v<br>",
+		vorname, nachname, email, telefon, sessions, agb, newsletter, equipment, format)
+	w.Write([]byte(response))
+
+}
+
+func main() {
+	var ser ServerHandler
+	http.ListenAndServe("localhost:8080", ser)
+}